Installing a mini split system yourself in the U.S. can be a smart move — if...

https://delta-wiki.win/index.php/Finding_and_Fixing_Refrigerant_Leaks_in_Ceiling_Cassette_%2B_Wall-Unit_Multi-Zone_Mini-Splits

Installing a mini split system yourself in the U.S. can be a smart move — if you understand what’s involved. The benefits are real: significant cost savings, energy efficiency, and customized climate control without the mess of ductwork